4. Paper making and fiber liberation
  5. Processes of chemical liberation, recovery or purification...
  6. With classifying, separating or screening of pulp

Donald F. Lehman

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Apparatus for screening paper fiber stock

Classifying – separating – and assorting solids – Sifting – With liquid treatment
Patent

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Method of treating paper fibers in a stationary screen

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With classifying – separating or screening of pulp
Patent

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Screening apparatus

Classifying – separating – and assorting solids – Sifting – Feeding and discharging
Patent

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Profile ID: LFUS-PAI-P-749466

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